Muwatta Malik, Book 57, Hadith 1842 (In-Book) ⓘ

Malik related to me from Abu'z-Zinad from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "The fire of the children of Adam which they kindle is a seventieth part of the fire of Jahannam." They said, "Messenger of Allah, this fire is certainly enough." He said, "That fire is sixty- nine times greater."

حَدَّثَنِي مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ نَارُ بَنِي آدَمَ الَّتِي يُوقِدُونَ جُزْءٌ مِنْ سَبْعِينَ جُزْءًا مِنْ نَارِ جَهَنَّمَ ‏"‏ ‏.‏ فَقَالُوا يَا رَسُولَ اللَّهِ إِنْ كَانَتْ لَكَافِيَةً ‏.‏ قَالَ ‏"‏ إِنَّهَا فُضِّلَتْ عَلَيْهَا بِتِسْعَةٍ وَسِتِّينَ جُزْءًا ‏"‏ ‏.‏